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We prove a moving lemma for higher Chow groups with modulus, in the sense of Binda-Kerz-Saito, of projective schemes when the modulus is given by a very ample divisor. This provides one of the first cases of moving lemmas for cycles with…

Algebraic Geometry · Mathematics 2016-10-05 Amalendu Krishna , Jinhyun Park

We prove moving lemma for additive higher Chow groups of smooth projective varieties. As applications, we prove the very general contravariance property of additive higher Chow groups. Using the moving lemma, we establish the structure of…

Algebraic Geometry · Mathematics 2009-09-18 Amalendu Krishna , Jinhyun Park

We prove a moving lemma for the additive and ordinary higher Chow groups of relative $0$-cycles of regular semi-local $k$-schemes essentially of finite type over an infinite perfect field. From this, we show that the cycle classes can be…

Algebraic Geometry · Mathematics 2020-06-24 Amalendu Krishna , Jinhyun Park

The moving lemma of Suslin states that a cycle on $X\times \mathbb{A} ^n$ meeting all faces properly can be moved so that it becomes equidimensional over $\mathbb{A}^n$. This leads to an isomorphism of motivic Borel-Moore homology and…

Algebraic Geometry · Mathematics 2018-03-16 Wataru Kai , Hiroyasu Miyazaki

The higher Chow group with modulus was introduced by Binda-Saito as a common generalization of Bloch's higher Chow group and the additive higher Chow group. In this paper, we study invariance properties of the higher Chow group with…

Algebraic Geometry · Mathematics 2017-06-29 Hiroyasu Miyazaki

We show that the multivariate additive higher Chow groups of a smooth affine $k$-scheme $\Spec (R)$ essentially of finite type over a perfect field $k$ of characteristic $\not = 2$ form a differential graded module over the big de Rham-Witt…

Algebraic Geometry · Mathematics 2015-12-25 Amalendu Krishna , Jinhyun Park

We show that the higher Chow groups with modulus of Binda-Kerz-Saito for a smooth quasi-projective scheme $X$ is a module over the Chow ring of $X$. From this, we deduce certain pull-backs, the projective bundle formula, and the blow-up…

Algebraic Geometry · Mathematics 2016-05-12 Amalendu Krishna , Jinhyun Park

We prove a decomposition theorem for the cohomological Chow group of 0-cycles on the double of a quasi-projective $R_1$-scheme over a field along a closed subscheme, in terms of the Chow groups, with and without modulus, of the scheme. This…

Algebraic Geometry · Mathematics 2022-07-25 Rahul Gupta , Amalendu Krishna , Jitendra Rathore

For a natural class of cohomology theories with support (including \'etale or pro-\'etale cohomology with suitable coefficients), we prove a moving lemma for cohomology classes with support on smooth quasi-projective k-varieties that admit…

Algebraic Geometry · Mathematics 2026-05-27 Stefan Schreieder

In the paper ``Weil transfer of algebraic cycles'', published by the second author in Indagationes Mathematicae about 25 years ago, a Weil transfer map for Chow groups of smooth algebraic varieties has been constructed and its basic…

Algebraic Geometry · Mathematics 2025-04-08 Nikita Karpenko , Guangzhao Zhu

We prove Bloch's formula for the Chow group of 0-cycles with modulus on a smooth quasi-projective surface over a field. We use this formula to give a simple proof of the rank one case of a conjecture of Deligne and Drinfeld on lisse…

Algebraic Geometry · Mathematics 2021-08-25 Federico Binda , Amalendu Krishna , Shuji Saito

One of the main results of this paper is a proof of the rank one case of an existence conjecture on lisse l-adic sheaves on a smooth variety over a finite field due to Deligne and Drinfeld. The problem is translated into the language of…

Number Theory · Mathematics 2017-02-22 Moritz Kerz , Shuji Saito

We prove Bloch's formula for the Chow group of 0-cycles with modulus on smooth projective varieties over finite fields. The proof relies on two new results in global ramification theory.

Algebraic Geometry · Mathematics 2022-03-28 Rahul Gupta , Amalendu Krishna

In this note we show that given a smooth affine variety $X$ over an algebraically closed field $k$ and an effective (possibly non reduced) Cartier divisor $D$ on it, the Kerz-Saito Chow group of zero cycles with modulus ${\rm CH}_0(X|D)$ is…

Algebraic Geometry · Mathematics 2017-03-20 Federico Binda

Let $\bar{X}$ be a smooth quasi-projective $d$-dimensional variety over a field $k$ and let $D$ be an effective Cartier divisor on it. In this note, we construct cycle class maps from (a variant of) the higher Chow group with modulus of the…

Algebraic Geometry · Mathematics 2018-01-10 Federico Binda

We study the deformations of the Chow group of zero-cycles of the special fibre of a smooth scheme over a henselian discrete valuation ring. Our main tools are Bloch's formula and differential forms. As a corollary we get an algebraization…

Algebraic Geometry · Mathematics 2020-06-22 Morten Lüders

The notion of modulus is a striking feature of Rosenlicht-Serre's theory of generalized Jacobian varieties of curves. It was carried over to algebraic cycles on general varieties by Bloch-Esnault, Park, R\"ulling, Krishna-Levine. Recently,…

Algebraic Geometry · Mathematics 2016-05-24 Federico Binda , Jin Cao , Wataru Kai , Rin Sugiyama

We show how to make the additive Chow groups of Bloch-Esnault, Ruelling and Park into a graded module for Bloch's higher Chow groups, in the case of a smooth projective variety over a field. This yields a a projective bundle formula as well…

Algebraic Geometry · Mathematics 2007-05-23 Amalendu Krishna , Marc Levine

This paper develops moving frame theory for partial difference equations and for differential-difference equations with one continuous independent variable. In each case, the theory is applied to the invariant calculus of variations and the…

Mathematical Physics · Physics 2024-01-17 Lewis C. White , Peter E. Hydon

Let X be a smooth variety over a field k and D an effective divisor whose support has simple normal crossings. We construct an explicit cycle map from the r-th Nisnevich motivic complex of the pair (X,D) to a shift of the r-th relative…

Algebraic Geometry · Mathematics 2016-07-13 Kay Rülling , Shuji Saito
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